Multi-Tow 7 Blade to 4 Flat Trailer Plug Adapter - Hopkins
OEM-quality replacement adapter that provides dual 7-blade and 4-flat outputs for ultimate towing versatility.
Overview
The Hopkins 40974 is a Plug-In Simple OEM replacement adapter designed for vehicles with factory-equipped 7-way tow packages. This heavy-duty unit converts your vehicle's harness into a dual-output station, supporting both 7-blade RV and 4-flat standard trailers without the need for additional adapters or wiring modifications.
R&P Service Insight
A professional solution for drivers who switch between heavy campers and light utility trailers frequently.
- Zero Splicing: Plugs directly into the factory loom to maintain harness integrity.
- Clean Look: Replaces damaged or single-output factory plugs for a flush, professional finish.
- Durability: High-impact plastic housing stands up to road debris and harsh hitch-area environments.
R&P Knowledge Hub
Compatibility: Designed for vehicle-specific wiring harnesses equipped with 7-way tow packages. Provides dual output for 7-Blade RV and 4-Flat trailers.
Vehicle / System Fit: Ideal for late-model trucks and SUVs including Chevy, Ford, RAM, Toyota, and Jeep models with factory tow wiring.
Installation Notes: Truly "Plug-In Simple." Ensure the vehicle harness "clicks" firmly into place for a weather-tight seal. We recommend using dielectric grease on the terminals to prevent corrosion.
Performance Insight: The dual-output design eliminates the need for bulky, dangling adapters, providing a more secure electrical connection and a cleaner aesthetic.
R&P Repair Insight
Before ordering, check your existing vehicle connector to ensure it matches the OEM plug style. This part is a common fix for corroded terminals or broken dust covers on factory-installed hitches.
- Bracket Check: This is the connector body only; it does not include the metal mounting bracket.
- Seal Check: Verify that your vehicle's harness side is clean and free of debris before plugging in the new unit.
- Function Check: After installation, test both the 4-flat and 7-blade ports to ensure ground and light signals are active.
Features
Dual-Output Design
Integrates both 7-blade and 4-flat sockets into one compact unit for maximum versatility.
Plug-In Simple
Exact fit OEM replacement—plugs directly into your factory harness with no cutting or splicing required.
Weather Protected
Features heavy-duty spring-loaded dust covers and pre-greased terminals to lock out moisture.
Impact Resistant
Constructed from high-quality, durable black plastic designed for long-term use in the hitch area.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 40974 |
| Product Type | Multi-Tow® Dual Connector |
| Application | Vehicle-to-Trailer Adapter |
| Material / Finish | Impact-Resistant Black Plastic |
| Key Measurement | 7-Blade RV & 4-Flat Standard |
| Fitment | OEM Plug Replacement |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Ford, Chevy, GMC, RAM, Toyota, Jeep |
| Primary Fit | Ford (2000-2025), RAM (2000-2024) |
| Secondary Fit | Chevy/GMC (2014-2025), Toyota, Jeep |
| Notes | Requires existing factory 7-way harness. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Hopkins 40974 Dual-Output Connector Body |
| Internal | Pre-Greased Terminal Contacts |
